{"data":{"id":"6f18df09-b812-485e-9116-c5ac9507b8bc","title":"langchain-core==1.2.9","summary":"LangChain-core version 1.2.9 includes several bug fixes and improvements, particularly adjusting how the software estimates token counts (the number of units of text an AI processes) when scaling them. The release also reverts a previous change to a hex color regex pattern (a rule for matching color codes) and adds testing improvements.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.2.9","publishedAt":"2026-02-05T14:22:02.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":[],"issueType":"news","affectedPackages":null,"affectedVendors":["LangChain"],"affectedVendorsRaw":["LangChain"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"patchAvailable":null,"disclosureDate":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":null,"aiComponentTargeted":"framework","llmSpecific":false,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null}}